[Retracted] Application of Isotope Tracer in Cross-Well Nanometre Tracer Testing

Table 1

Nanometre tracer type selection of well cluster J1.

Simulated horizon	Tracer primary screening	Relative dosage (%)	Tracer indication	Tracer selection	Corresponding well
Long	Yb	25	Strong		J2, J3, J4, and J5
	Er	25	Weak
Long	Yb	25	Weak		J6, J7, J8, and J9
	Er	25	Strong